A recliner heart includes a housing member, a locking plate and a pawl. The housing member includes a plate surface having a first recess and a second recess. The locking plate includes a surface having teeth formed thereon. The pawl is movable in the first recess between a secure position in which the pawl is engaged with the teeth of the locking plate and a release position in which the pawl is disengaged from the teeth of the locking plate. The pawl includes a boss slidably received in the second recess. A first lateral side of the boss abuts against a sidewall of the second recess upon an impact event.

A vehicle-seat-recliner assembly may include first and second recliner hearts, a release handle, a cross-member, a handle pin, a handle-travel-limiter, and a reinforcement member. The release handle is connected with the first recliner heart and is rotatable relative to the brackets to move the first recliner heart between locked and unlocked states. The cross-member is connected to the recliner hearts and transmits torque from the release handle to the second recliner heart to move the recliner hearts between the locked and unlocked states. The handle pin engages the release handle. The handle-travel-limiter may include a flange portion and a shaft portion. The shaft portion may include an aperture configured to receive the cross-member. The flange portion extends radially outward from the shaft portion. The handle pin engages the handle-travel-limiter. The reinforcement member may be fixed to the handle-travel-limiter and the handle pin.

A vehicle-seat-recliner assembly may include first and second recliner hearts, a release handle, a cross-member, a handle pin, a handle-travel-limiter, and a reinforcement member. The release handle is connected with the first recliner heart and is rotatable relative to the brackets to move the first recliner heart between locked and unlocked states. The cross-member is connected to the recliner hearts and transmits torque from the release handle to the second recliner heart to move the recliner hearts between the locked and unlocked states. The handle pin engages the release handle. The handle-travel-limiter may include a flange portion and a shaft portion. The shaft portion may include an aperture configured to receive the cross-member. The flange portion extends radially outward from the shaft portion. The handle pin engages the handle-travel-limiter. The reinforcement member may be fixed to the handle-travel-limiter and the handle pin.

A recliner mechanism for a vehicle seat may include a guide plate, a locking plate, a pawl, an actuator hub, and a coil spring. The guide plate includes a recess and a projection. The locking plate includes a surface having teeth formed thereon. The pawl is movable in the recess between a secure position in which the pawl is engaged with the teeth of the locking plate to restrict relative rotation between the guide plate and the locking plate and a release position in which the pawl is disengaged from the teeth of the locking plate to allow relative rotation between the guide plate and the locking plate. Rotation of the actuator hub causes corresponding movement of the pawl between the secure position and the release position. The coil spring includes a first end engaging the actuator hub and a second end that hooks the projection of the guide plate.

A discontinuous recliner for a vehicle seat is provided. The discontinuous recliner comprises one or more locking pawls and a single actuating element which is configured to drive the locking pawl(s) both from the locking position to the unlocking position and from the unlocking position to the locking position. Thanks to the provision of the single actuating element, the overall number of components of the discontinuous recliner is significantly reduced. This allows to obtain a discontinuous recliner which is lighter, easier to be assembled and more reliable.

A recliner according to one aspect of the present disclosure includes a plate-shaped ratchet, at least one pawl, a plate-shaped guide member, and a ratchet seating portion. The ratchet seating portion is provided on the guide member to be positioned on an inner peripheral side of a second flange and between two guide walls adjacent to each other in a circumferential direction on the guide member. The ratchet seating portion protrudes toward the first flange of the ratchet and is configured to come into sliding contact with a tip of the first flange.

A recliner according to one aspect of the present disclosure includes a plate-shaped ratchet, at least one pawl, a plate-shaped guide member, and a ratchet seating portion. The ratchet seating portion is provided on the guide member to be positioned on an inner peripheral side of a second flange and between two guide walls adjacent to each other in a circumferential direction on the guide member. The ratchet seating portion protrudes toward the first flange of the ratchet and is configured to come into sliding contact with a tip of the first flange.

A recliner heart includes a housing member, a locking plate and a pawl. The housing member includes a plate surface having a first recess and a second recess. The locking plate includes a surface having teeth formed thereon. The pawl is movable in the first recess between a secure position in which the pawl is engaged with the teeth of the locking plate and a release position in which the pawl is disengaged from the teeth of the locking plate. The pawl includes a boss slidably received in the second recess. A first lateral side of the boss abuts against a sidewall of the second recess upon an impact event.

A seat adjuster includes an adjustable slider, a cam lever, and/or a pivot arm. The cam lever may be rotatably connected to the slider at or about a cam-slider axis such that the cam lever pivots about the cam-slider axis when the slider is adjusted. The pivot arm may have a first arm end and a second arm end disposed opposite one another. The first arm end may be rotatably connected to the cam lever at or about a cam-arm axis such that, when the slider is adjusted, (i) the cam lever pivots about the cam-arm axis and (ii) the pivot arm pivots about an arm-housing axis extending through the second arm end.

The present invention relates to a reclining device (1) for a vehicle seat of the kind comprising a first plate carrying an internal gear (5) and a second plate carrying an external gear (11) configured to cooperate with the internal gear. The reclining device includes a first and second wedge elements (17a, 17b) for exerting a wedge effect and preventing accidental, undesired rotation of the external and internal gears relative to each other. The reclining device (1) further comprises a lock spring (21). According to the invention the lock spring (21) comprises a wedge engaging element (35) that can be brought to abut and engage a lock spring abutment surface (37a, 37b) of a wedge element. Thanks to this arrangement, the lock spring directly interacts with the wedge elements and directly restricts self-rotation of said wedge elements, which avoids any loss of force and function between said lock spring and said wedge elements.